Hi Murtuza,
Thank you for buying our theme. We hope it will meet all your expectations! 🙂
First and foremost, could you please check the WordPress prerequisites? Here are the WordPress requirements.
For better performance and improve security, we obviously recommend PHP 7.4+. Nevertheless, if this is not possible for you (server type, incompatibilities with plugins, etc.), we recommend at least version 5.6.X.
Then, could you reset your website? Once it is done, it’s best if we take a quick look at this. Could you create a new website user for us please? If possible with administrator capabilities so we can make a quick check of your settings.
You can post the user name and password in your next reply and mark it as private to keep this between us.
Also, are we free to deactivate plugins for our tests? In this case, I invite you to make a backup before we investigate your website further in order to make sure you don’t loose any data if something goes wrong.
Thank you.